As soon as I click on the App Engine Launcher, it gives an error dialog box and asks me to check the GoogleAppEngineLauncher.exe file for more details.

I have appended the log file below:

File "GoogleAppEngineLauncher.py", line 42, in <module>
File "wx\_core.pyc", line 7913, in __init__
File "wx\_core.pyc", line 7487, in _BootstrapApp
File "launcher\app.pyc", line 58, in OnInit
File "launcher\app.pyc", line 152, in _VersionCheck
File "urllib.pyc", line 82, in urlopen
File "urllib.pyc", line 190, in open
File "urllib.pyc", line 338, in open_http
File "urllib.pyc", line 351, in http_error
File "urllib.pyc", line 702, in http_error_407
File "urllib.pyc", line 714, in retry_proxy_http_basic_auth
File "urllib.pyc", line 773, in get_user_passwd
File "urllib.pyc", line 782, in prompt_user_passwd
EOFError: EOF when reading a line

From the file, I get the feeling that it's about giving the right proxy details.